Kristensen PK, et al. - A population-based cohort study was designed to obtain data on processes of treatment, nursing care and rehabilitation as well as outcomes for patients with hip fracture in Denmark, and thereby monitor and improve the quality. In this DMHFR, a sum of 86,438 hip fracture individuals were recruited at the end of 2018. Since 2006, treatment of patients with hip fracture in all hospital departments, Denmark, they found improvement in quality of care and improvement in survival, and reoperation over time as well as high completeness of variables registration. In Denmark, the DMHFR is a well-established nationwide clinical registry, which plays an important role for monitoring and improving hip fracture care. In order to answer a number of relevant clinical research questions, the registry can further be associated to a range of other nationwide registries.